Camphene-lamp



M. B; DYOTT- Lamp.

Patented Aug. 25, 1840.

."IV PETERS plfulwy lhognphor, Washington. D. C.

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H STAES PATET ICE MICHAEL B. DYOTT, OF PHILADELPHIA, PENNSYLVANIA.

CAMPHENE-LAMP.

Specification of Letters Patent No. 1,742, dated August 25, 1840.

To all whom it may concern:

.Be it known that I, .MIOI-IAEL B. DYoTT, of the city 'of Philadelphiaand State of Pennsylvania, have discovered and invented a new andImproved Method of Constructing Lamps for Consuming Camphene-Oil'; and Ido hereby declare that the following is a full and exact description ofthe construction, operation, and mode of using the same, reference beinghad to the annexed drawings, forming a part of this specification, inwhich Figure 1, is a perspective view of the whole lamp, the regulatingplate being taken off, which is represented by Fig. 2. Fig. 3 is asection or a representation of a lamp out directly in half, showing theinternal construction, the situation of the wick, which is shown bv thered lines, and the exact position of the regulating plate in relation tothe burners.

The nature of my invention consists in.

the application of a movable plate, effecting the draft on the out aswell as on the inside of the flame by the same movement, by which meansI am able to obtain a more acute draft, a thinner flame, consequentlya'more brilliant light, and can burn the flame one-third higher withoutproducing smoke, than by any other means that has been heretofore usedor known.

To give the public a correct and definite knowledge of my invention, Iwill proceed to describe the whole construction and operation.

I construct my lamp with any convenient numbers, but adopt as having thehandsomest appearance, three burners, placed in a triangular position(see Fig. 1, letter a) the body of the lamp or oil chamber is composedof two cylinders of tin or other metal, the inner cylinder may be 2, 3,or 4 inches long, 6, 8 or 10 inches in diameter at the bottom and from 2to 5 inches in diameter at the top; the outside cylinder may be of equallength, a half an inch larger in diameter at the top and may vary insize at the bottom in proportion to the quantity of oil' necessary tosupply the burners, these two cylinders are joined together at thebottom forming a chamber for the oil (see Fig. 3, letter b) on the topof said chamber or body of the lamp is placed three burners (see Fig. 1,letter a), which project above the top of said chamber fromthree-eighths to fiveeighths of an inch, they being as long as thediameterof the oil chamber will admit of, leaving a space between thecorners of the burners of about one-half an inch (letter 0, Fig. 1) theburners are formed of 2 pieces of metal that meet at the top within aonethirty-second part of an inch or the thickness of whatever substancemay be used for wick, at the bottom they are apart from each other aboutone-fourth of. an inch, the inner piece (letter (Z, Fig. 1) isstationary, the outside one is fixed upon a hinge at the bottom (seeletter e, Fig. 1) (said hinge being attached to the upper part of theoil chamber) opening as a door or lid to the burner, being the mostconvenient mode of access through which the wick may be inserted intothe oil chamber; said lid, or outer part of burner, is kept shut, by aspring (letter 7", Fig. 1), which presses the top between the edge ofthe two above described pieces of metal or the burner, which said piecesform (see Fig. 1, red lines in the top of burner that represent thewick) the remaining openings that are not covered by the burners, in thetop of the oil chamber, must be closed (with tin or other metal) leavingno openings in the oil chamber, except through the burners and thepassage (letter n, F 1 and 8), through which the chamber is filled withoil; there are 3 wires fixed near the top of the oil chamber upon whichscrews are cut and asmall round brass nut placed upon each (see Fig. 1,,letter g), for the purpose of raising and lowering the regulating platerepresented by Fig. 2, said plate having 3 pieces of metal projectingfrom it with holes in each of them, of sufficient size to admit thewires (letter 9, Fig. 1) through them. (See letter h, Fig. 2). This is around plate of metal about the same diameter as the top of the oilchamber, having holes cut in it three-eighths ofan inch wide andone-quarter of an inch longer than the burner (see Fig. 2, letter Z),these holes should be cut in such a manner as to leave a space betweenthe part of the plate regulating the outer draft (see letter m, Figs. 3and 2) and the outside edge of the wick of about one-sixteenth of aninch, and a space between the part of the plate (letter in, Figs. 3 and2) that regulates the inner draft and the inside edge of the wick ofabout a quarter of an inch. Space shown by letter Z, Fig. 3) the wickwhich is represented by the red ink lines in Fig. 3 is a upon theoutside of it, confining the wick at piece'of Canton flannel with asshort knap as can be procured, or a piece of cotton drilling a quarterof an inch narrower than the length of the burner, and from6 inches to aquarter of a yard long, the wick'being placed in the middle of theburner, would leave an open space at each corner of the burner ofone-eighth of an inch long, which is filled up with a piece of tin ormetal equal in thickness to the wick, which is to prevent the gum whicharises from theoil, from collecting in the corners of the burners, whichit would otherwise do. To put the wick into the lamp take the spring(letter f, Fig.

burner shut and holds the wick in its proper place, then out the wick01f, within the thickness of a ten cent piece ofthe top of the burner;the corners of the wick should a be out 01f close to the burner forabout an eighth of an inch; when all the burners are thus trimmed putthe regulating plate (Fig, 2) in its place, the projections of saidplate (letter h, Fig. 2) resting upon the brass nuts which are placedupon the wires (Fig. 1, letter g); put the glass upon this plate andsecure it in the ordinary way or by a small screw (Fig. 2, letter 19),raise the plate by turning the brass nuts (Fig. 1, letter 9),

to the right, then light the lamp by passing a match up the center ofthe lamp. To increase the light raise the plate upon which the glassrests, by means of the nuts, as above directed, and diminish the lightby turning them to the left or, lowering the plate; the distancenecessary to raise the plate will vary in proportion to the height oftheglass. The lamp should be trimmed every day, first cleaning 011' thegum which has collected on the burners with a knife or a pair ofscissors, then pull up the wick, with the fingers or a palrof scissors,and cut ofi what has been soiled the previous evening, leaving the wickabove the top of the burners about the thickness of a ten cent piece;when the wick becomes too short to reach to the bottom of the oilchamber, it should be renewed, in the manner as above described ofputting the wick in the lamp.

What I claim as my invention, and desire to secure by Letters Patent, isnot any exact proportion or number of burners, or the particular mode ofdisposing or placing them in any peculiar form or situation, but I claimThe mode described' of regulating the draft by means of a movable plate,which sustains the glass chimney, and otherwise (Fig. 2), beingconstructed and operating asset forth and described in the abovespecification.

MICHAEL B. DYOTT.

Witnesses:

P. CHRISTIAN, JOHN Soorr.

